Abstract: A method for estimating the quality of a signal comprising: receiving a periodic signal comprising a first wave and a second wave; estimating similarity between the first wave and the second wave; assigning a weight for the second wave based on the similarity between the first wave and the second wave; classifying the second wave as non-reliable when the weight fails to exceed a predefined threshold.

Abstract: A method for estimating the quality of a signal comprising: receiving a periodic signal comprising a first wave and a second wave; estimating similarity between the first wave and the second wave; assigning a weight for the second wave based on the similarity between the first wave and the second wave; classifying the second wave as non-reliable when the weight fails to exceed a predefined threshold.

Abstract: The present disclosure relates to a wrist strap (10) for a biometric monitor, wherein the biometric monitor comprises a casing (12) having a first surface (14) and a second surface (16) opposite to the first surface, the second surface comprising a biometric sensor area (18) located at the centre area of the second surface, said strap comprising receiving means arranged to receive the biometric monitor, such that the biometric monitor is attachable to the strap via a pair of parts (20, 21; 22, 23; 24, 25) enabling rotational movement of the biometric monitor, the parts being located at two opposite perimeter side edges of the biometric monitor, and thereby defining a rotation axis (Ax1), wherein the perpendicular bisector (PB1) of the rotation axis (Ax1) between the pair of parts is arranged to pass through the centre area of the second surface. The present disclosure also provides a biometric monitor connected to the wrist strap.

Abstract: A portable pulse measuring device having a lighting configuration having at least three elements selected from a light-emitting source for emitting radiant energy through a human body tissue and a light detector for detecting the intensity of said radiant energy after propagation through the human body tissue and for providing input signals representative of the propagation. The lighting configuration includes at least one light-emitting source and at least one light detector. A processor is provided for determining pulse rate in response to processing the input signals. The elements in the lighting configuration are arranged in the portable pulse measuring device in a configuration where the light-emitting sources in the lighting configuration are asymmetrically disposed in relation to the light detectors in the lighting configuration.

Abstract: A portable biometric wrist device having an optical sensor and including at least one light source and at least one light detector installed onto a circuit board, a casing having at least one aperture for said at least one light source and at least one aperture for said at least one light detector, wherein each of said at least one light source and at least one light detector are optically isolated from each other inside said casing with a sealing plate between said casing and said circuit board, said sealing plate having at least one aperture for said at least one light source and at least one aperture for at said least one light detector. The present invention also provides a method for manufacturing said portable biometric wrist device.

Abstract: The present application provides a portable biometric monitor (10) comprising a biometric sensor, wherein the housing of said portable biometric monitor is connected to a strap for attaching the portable biometric monitor to a user, the strap comprising a first end and a second end, wherein the strap comprises spacer elements (12, 13, 14, 15) having a first end and a second end, the strap being connected from its two sides at the first end and from its two sides at the second end to two sides at the first end of the housing and to two sides at the second end of the housing via pivots (16, 17, 18, 19) connected to said spacer elements to allow pivoted movement of the housing, wherein the distance of the pivot locations between the first end of the housing and the second end of the housing is in the range of 10-30 mm.

Abstract: A strap for a pulse measuring device, wherein the strap includes an indicator configured to indicate tightness of the strap. A portable pulse measuring device having a strap configured to fasten the portable pulse measuring device on a human; and a mechanical indicator configured to indicate tightness of the strap are also disclosed.

Abstract: The present application provides a portable biometric monitor (10) comprising a biometric sensor, wherein the housing of said portable biometric monitor is connected to a strap for attaching the portable biometric monitor to a user, the strap comprising a first end and a second end, wherein the strap comprises spacer elements (12, 13, 14, 15) having a first end and a second end, the strap being connected from its two sides at the first end and from its two sides at the second end to two sides at the first end of the housing and to two sides at the second end of the housing via pivots (16, 17, 18, 19) connected to said spacer elements to allow pivoted movement of the housing, wherein the distance of the pivot locations between the first end of the housing and the second end of the housing is in the range of 10-30 mm.